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        <title>1.4 Kafka 架构 · 大数据 Fulume 课堂笔记</title>
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                    第 1 章 Kafka 概述
            
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                    1.1 消息队列
            
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                    1.2 为什么需要消息队列
            
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                    1.3 什么是 Kafka
            
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                    1.4 Kafka 架构
            
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                    第 2 章 Kafka 集群部署
            
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                    2.1 下载 Kafka
            
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                    2.2 部署
            
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                    2.3 Kafka 常用命令操作
            
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                    第 3 章 Kafka 工作流程分析
            
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                    3.1 Kafka 生产过程分析
            
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                    3.2 broker 保存消息
            
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                    3.3 Zookeeper 存储结构
            
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                    3.4 Kafka 消费过程分析
            
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                    3.5 消费者组案例
            
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                    第 4 章 API 实战
            
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                    4.1 环境准备
            
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                    4.2 Kafka 生产者 API
            
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                    4.3 Kafka 消费者 API
            
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                    4.3.1 Kafka 消费者之高级 API
            
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                    4.3.2 Kafka 消费者之低级 API
            
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                    第 5 章 拦截器
            
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                    5.1 拦截器原理
            
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                    5.2 拦截器案例
            
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                    第 6 章 Kafka stream
            
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                    6.1 概述
            
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                    6.2 Kafka Stream 数据清洗案例
            
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                    第 7 章 扩展
            
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                    7.1 Kafka 和 Flume 比较
            
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                    7.2 Kafka 和 Flume 集成
            
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                    7.3 Kafka 配置信息
            
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                    7.3.1 broker 配置信息
            
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                    7.3.2 Producer 配置信息
            
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                    7.3.3 Consumer 配置信息
            
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                                <h1 id="14-kafka-&#x67B6;&#x6784;">1.4 Kafka &#x67B6;&#x6784;</h1>
<p><img src="http://lizhenchao.oss-cn-shenzhen.aliyuncs.com/1541669218.png-atguiguText" alt=""></p>
<p><img src="http://lizhenchao.oss-cn-shenzhen.aliyuncs.com/1541669230.png-atguiguText" alt=""></p>
<h2 id="141-&#x89D2;&#x8272;&#x8BF4;&#x660E;">1.4.1 &#x89D2;&#x8272;&#x8BF4;&#x660E;</h2>
<h3 id="broker">Broker</h3>
<p>&#x4E00;&#x53F0; kafka &#x670D;&#x52A1;&#x5668;&#x5C31;&#x662F;&#x4E00;&#x4E2A; broker&#x3002;&#x4E00;&#x4E2A;&#x96C6;&#x7FA4;&#x7531;&#x591A;&#x4E2A;broker&#x7EC4;&#x6210;&#x3002;&#x4E00;&#x4E2A; broker &#x53EF;&#x4EE5;&#x5BB9;&#x7EB3;&#x591A;&#x4E2A; topic&#xFF1B;</p>
<p>broker &#x5176;&#x5B9E;&#x5C31;&#x662F;&#x5728; Hadoop &#x96C6;&#x7FA4;&#x4E2D;&#x7684;&#x8282;&#x70B9;&#x7684;&#x6982;&#x5FF5;.</p>
<p>broker &#x63A5;&#x6536;&#x6765;&#x81EA;&#x751F;&#x4EA7;&#x8005;&#x7684;&#x6D88;&#x606F;&#xFF0C;&#x4E3A;&#x6D88;&#x606F;&#x8BBE;&#x7F6E;&#x504F;&#x79FB;&#x91CF;&#xFF0C;&#x5E76;&#x63D0;&#x4EA4;&#x6D88;&#x606F;&#x5230;&#x78C1;&#x76D8;&#x4FDD;&#x5B58;&#x3002;</p>
<p>broker &#x4E3A;&#x6D88;&#x8D39;&#x8005;&#x63D0;&#x4F9B;&#x670D;&#x52A1;&#xFF0C;&#x5BF9;&#x8BFB;&#x53D6;&#x5206;&#x533A;&#x7684;&#x8BF7;&#x6C42;&#x4F5C;&#x51FA;&#x54CD;&#x5E94;&#xFF0C;&#x8FD4;&#x56DE;&#x7ED9;&#x6D88;&#x8D39;&#x8005;&#x66FE;&#x7ECF;&#x751F;&#x4EA7;&#x8005;&#x5DF2;&#x7ECF;&#x63D0;&#x4EA4;&#x5230;&#x78C1;&#x76D8;&#x4E0A;&#x7684;&#x6D88;&#x606F;.</p>
<h3 id="producer">Producer</h3>
<p>&#x6D88;&#x606F;&#x751F;&#x4EA7;&#x8005;&#xFF0C;&#x5C31;&#x662F;&#x5411; kafka broker &#x53D1;&#x6D88;&#x606F;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#xFF1B;</p>
<h3 id="consumer">Consumer</h3>
<p>&#x6D88;&#x606F;&#x6D88;&#x8D39;&#x8005;&#xFF0C;&#x4ECE; kafka broker &#x8BFB;&#x53D6;&#x6D88;&#x606F;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#xFF1B;</p>
<h3 id="topic">Topic</h3>
<p>Kaflca &#x7684;&#x6084;&#x606F;&#x901A;&#x8FC7; Topic &#x8FDB;&#x884C;&#x5206;&#x7C7B;&#x3002; 
&#x4E3B;&#x9898;&#x5C31;&#x597D;&#x6BD4;&#x6570;&#x636E;&#x5E93;&#x7684;&#x8868;&#xFF0C;&#x6216;&#x8005;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x91CC;&#x7684;&#x6587;&#x4EF6;&#x5939;&#x3002;</p>
<p>&#x751F;&#x4EA7;&#x8005;&#x5411; broker &#x53D1;&#x9001;&#x6D88;&#x606F;&#x7684;&#x65F6;&#x5019;&#x8981;&#x6307;&#x5B9A;&#x4E00;&#x4E2A; Topic, &#x6D88;&#x8D39;&#x8005;&#x8BFB;&#x53D6;&#x6D88;&#x606F;&#x7684;&#x65F6;&#x5019;&#x4E5F;&#x5F97;&#x6307;&#x5B9A;&#x4E00;&#x4E2A;&#x5177;&#x4F53;&#x7684; Topic.</p>
<h3 id="partition">Partition</h3>
<p>&#x4E3A;&#x4E86;&#x5B9E;&#x73B0;&#x6269;&#x5C55;&#x6027;&#xFF0C;&#x4E00;&#x4E2A;&#x975E;&#x5E38;&#x5927;&#x7684; topic &#x53EF;&#x4EE5;&#x5206;&#x5E03;&#x5230;&#x591A;&#x4E2A; broker&#xFF08;&#x5373;&#x670D;&#x52A1;&#x5668;&#xFF09;&#x4E0A;&#xFF0C;&#x4E00;&#x4E2A;topic &#x53EF;&#x4EE5;&#x5206;&#x4E3A;&#x591A;&#x4E2A; partition.</p>
<p>&#x6D88;&#x606F;&#x4EE5;&#x8FFD;&#x52A0;&#x7684;&#x65B9;&#x5F0F;&#x5199;&#x5165; partition&#xFF0C;&#x540E;&#x4EE5;&#x5148;&#x5148;&#x51FA;&#x7684;&#x987A;&#x5E8F;&#x8BFB;&#x53D6;&#x3002;</p>
<p>&#x6BCF;&#x4E2A; partition &#x662F;&#x4E00;&#x4E2A;&#x6709;&#x5E8F;&#x7684;&#x961F;&#x5217;&#x3002;partition &#x4E2D;&#x7684;&#x6BCF;&#x6761;&#x6D88;&#x606F;&#x90FD;&#x4F1A;&#x88AB;&#x5206;&#x914D;&#x4E00;&#x4E2A;&#x6709;&#x5E8F;&#x7684;id&#xFF08;offset&#xFF09;&#x3002;kafka &#x53EA;&#x4FDD;&#x8BC1;&#x6309;&#x4E00;&#x4E2A; partition &#x4E2D;&#x7684;&#x987A;&#x5E8F;&#x5C06;&#x6D88;&#x606F;&#x53D1;&#x7ED9; consumer&#xFF0C;&#x4E0D;&#x4FDD;&#x8BC1;&#x4E00;&#x4E2A; topic &#x7684;&#x6574;&#x4F53;&#xFF08;&#x591A;&#x4E2A;partition&#x95F4;&#xFF09;&#x7684;&#x987A;&#x5E8F;&#xFF1B;</p>
<h3 id="consumer-group">Consumer Group</h3>
<p>&#x4E00;&#x4E2A; Consumer Group &#x662F;&#x591A;&#x4E2A; consumer &#x7684;&#x7EC4;&#x5408;, &#x4F5C;&#x4E3A;&#x4E00;&#x4E2A;&#x6574;&#x4F53;&#x5B58;&#x5728;.</p>
<p>&#x8FD9;&#x662F; kafka &#x7528;&#x6765;&#x5B9E;&#x73B0;&#x4E00;&#x4E2A; topic &#x6D88;&#x606F;&#x7684;&#x5E7F;&#x64AD;&#xFF08;&#x53D1;&#x7ED9;&#x6240;&#x6709;&#x7684; consumer &#xFF09;&#x548C; &#x5355;&#x64AD;&#xFF08;&#x53D1;&#x7ED9;&#x4EFB;&#x610F;&#x4E00;&#x4E2A; consumer&#xFF09;&#x7684;&#x624B;&#x6BB5;&#x3002;</p>
<p>&#x540C;&#x4E00;&#x4E2A;&#x6D88;&#x8D39;&#x8005;&#x7EC4;&#x5185;&#x7684;&#x6D88;&#x8D39;&#x8005;&#x8BFB;&#x53D6;&#x6D88;&#x606F;&#x7684;&#x65F6;&#x5019;, &#x4E0D;&#x4F1A;&#x8BFB;&#x53D6;&#x540C;&#x4E00;&#x4E2A;&#x5206;&#x533A;&#x5185;&#x7684;&#x6D88;&#x606F;.</p>
<p>&#x4F46;&#x662F;&#x7EC4;&#x4E0E;&#x7EC4;&#x4E4B;&#x95F4;&#x4E0D;&#x53D7;&#x4EFB;&#x4F55;&#x5F71;&#x54CD;.</p>
<h2 id="offset">Offset</h2>
<p>&#x504F;&#x79FB;&#x91CF;.</p>
<p>kafka &#x7684;&#x5B58;&#x50A8;&#x6587;&#x4EF6;&#x90FD;&#x662F;&#x6309;&#x7167; offset.kafka &#x6765;&#x547D;&#x540D;</p>
<p>&#x7528; offset &#x505A;&#x540D;&#x5B57;&#x7684;&#x597D;&#x5904;&#x662F;&#x65B9;&#x4FBF;&#x67E5;&#x627E;&#x3002;&#x4F8B;&#x5982;&#x4F60;&#x60F3;&#x627E;&#x4F4D;&#x4E8E; 2049 &#x7684;&#x4F4D;&#x7F6E;&#xFF0C;&#x53EA;&#x8981;&#x627E;&#x5230;2048.kafka &#x7684;&#x6587;&#x4EF6;&#x5373;&#x53EF;&#x3002;</p>
<p>&#x5F53;&#x7136;the first offset&#x5C31;&#x662F;00000000000.kafka&#x3002;</p>
<h2 id="&#x5173;&#x4E8E;-zookeeper">&#x5173;&#x4E8E; zookeeper</h2>
<p>Kafka &#x4F7F;&#x7528; Zookeeper &#x4FDD;&#x5B58;&#x96C6;&#x7FA4;&#x7684;&#x5143;&#x6570;&#x636E;&#x4FE1;&#x606F;&#x548C;&#x6D88;&#x8D39;&#x8005;&#x4FE1;&#x606F;, &#x6765;&#x4FDD;&#x8BC1;&#x96C6;&#x7FA4;&#x7684;&#x53EF;&#x7528;&#x6027;.</p>
<p>Kafka &#x96C6;&#x7FA4;&#x4E2D;&#x53EA;&#x80FD;&#x6709;&#x4E00;&#x4E2A; leader, &#x5176;&#x4ED6;&#x90FD;&#x662F; follower, &#x8FD9;&#x90FD;&#x9700;&#x8981; Zookeeper &#x6765;&#x4FDD;&#x8BC1;.</p>
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